In the USA Today internet poll. 73% of readers indicated that they were satisfied with their lives. 73% of readers who are satisfied with their lives would be described as...

A. the population

B. the sample

C. a population statistic

D. a sample statistic

X= 49; x = 4step 1: foilstep 2: equal both to 0step 3: find x individually

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )